TTC almost 1 year, 21 years old

I’ve been trying to conceive since last July/August and have had no luck. ‪I️‬ was on birth control until that July and got off around early mid July. My boyfriend has a kid so ‪I️‬ don’t know if he’s the one struggling. But he also drinks a lot (trying to reduce his drinking). I’m not much of a drinker other than the weekends but never get past tipsy. Idk if alcohol is decreasing both our chances or I’m just not having good fertility. ‪I️‬ eat pretty healthy as well. ‪I️‬ take prenatals already. Anyone have any recommendations to TTC? I’m also pretty irregular and my cycle these past two times have been irregular, meaning I’ve had a period every 30-31 days and it’s usually 26-27 days.